My wife and I are just starting the journey of buying our first home together. We're both excited and nervous, because a lot can and does go wrong.

One of the first steps I took was to figure out exactly how much house we could comfortably afford to buy. While there are a variety of affordability calculators out there, I wanted to get pre-approved before we ventured out to find our dream home. Turns out, the fact that we don't plan on moving until next summer made it too early to consider getting pre-approved.

That said, the effort wasn't completely wasted. I learned three things that every prospective home buyer should know in order get their house in order, so to speak - things that will make for a smooth process when applying for a loan.

1. Get Your Credit House in Order

Home buyers need to do everything in their power to boost their credit score before applying for a mortgage. This means paying down credit cards and making sure your credit is as squeaky clean as you can get it.

It's a good idea to check out your credit reports well in advance of applying for a loan to make sure there are no issues you need to address. You can pull reports from all three major bureaus for free at annualcreditreport.com.( Everyone whose income is going to be considered in qualifying for the loan needs to do this.)

If there are any issues, start fixing them immediately. Some red marks - even if they are due to inaccurate reporting and not because of your bad credit management - can take a while to clean up.

When I pulled my credit report I was pleased to find that my credit score is still in healthy shape. However, it could be better. I have too many accounts carrying balances. To get my credit house in order, I plan on paying off the one card that's holding a balance from our last vacation, despite the fact that it charges zero percent interest.

2. Protect Your Credit Reputation

Once your credit house is in order, protect it. According to John Laymac of CBC National Bank, there are several things we can do between now and when we buy our new home:

"Do not let anyone pull your credit, pay everything on time, do not close any accounts you may pay down to zero, do not apply for any new credit( besides the mortgage), do not buy a car, do not make other large purchases on credit and do not carry a balance on any revolving account that is more than 25 percent of the card's limit. Use a mix of cards if you have more than one and pay the balance off or below 25 percent of the limit when the bill arrives."

That pretty much sums up what you need to do to avoid accidentally dinging your own credit before you start shopping for a loan.

What's probably most surprising is that closing accounts or paying off a term loan are actually a very bad idea, especially before applying for a mortgage. Closing a major credit card can actually do damage to a credit score. Lenders look at the balance on revolving credit accounts in terms of its ratio to total available credit. Closing an account can have the unintended consequence of raising the ratio. Paying off a car is the same story; lenders want to see a long-term credit history. So, it's actually better to put any extra money toward a down payment rather than paying off the car.

One other thing Laymac recommended we do is go to OptOutPrescreen.com and register to electronically opt out of electronic offers( spam and junk mail) of credit for five years. He said that "this is similar to the do-not-call list and the credit bureaus see it as a positive." Bottom line: Prospective homeowners should do all they can to protect their credit before applying for a mortgage.

3. Open a Separate Account to Hold Your Down Payment Funds

It goes without saying that a new homebuyer will be forking over money, and lots of it, at the closing. What you might not know is that the funds set aside for a down payment and closing costs shouldn't be kept under the mattress, nor should those funds be in your main checking account.